ORLANDO, Florida: A day after Gov. Ron DeSantis designated a leading Muslim civil rights organization as a “foreign terrorist organization,” leaders of the group’s Florida chapter on Tuesday promised a lawsuit and said the state had no legal basis for such a declaration.

Florida has designated the Muslim Brotherhood and the Council on American-Islamic Relations as foreign terrorist organizations, becoming the second GOP-led state in as many months…

Florida Governor Ron DeSantis signed an executive order branding the Council on American-Islamic Relations, one of the nation’s leading Muslim civil...